Electric cut-out



(No Model.)

E. M. AVERY..

ELECTRIC GUT-OUT.

INVENTDR Patented Apr.24, 1883.

WI NESSES ELECTRIC CUT-OUT.

SPECIFICATION forming part of Letters Patent No. 276,328, dated April24, 1883.

Application filed October 10, 1882.

To all whom it may concern Be it known that I, ELRoY M. AVERY, ot'Cleveland, in the county of Cuyahoga and State of Ohio, have inventedcertain new and useful Improvements in Electric Out-Outs; and I dohereby declare the following` to be a a full, clear, and exactdescription ot' the invention, such as will enable others skilled in theart to which it pertains to make and use the same.

My invention relates to cut-out devices for use in connection withelectric-light and like apparatus; and it consistsin thepcculiarcoustruction of the same, as will be hereinafter fully set forthand claimed.

In the drawings, Figure l is a view in elevation of a cut outdeviceconstructed according to my invention. Figs. 2 and 3 are vern ticalcross-sections taken through the same. Fig. 4 is a sectional view of thecut-out bar, showing the manner ol' securing it at one end to one of thecomlucting-wires, and also showing more clearly the manner of formingthe wire at this point to allow ot' the free vibrating movement of thefree end of the said cntout bar.

A A are two pieces of well-seasoned board, which are preferably securedtogether in such a manner that the grain of the wood runs in oppositedirections, so as to render them less liable to split or warp.

B C are the conducting-wires, which are to be connected to the main wireat a and b and to the wires leading to the lamps or other apparatus at cand d.

D is a flat plate or disk of metal of low electric resistance, which isfirmly secured on its under side to the wire B,between two spirals, ce', which are formed on the wire B, so as to allow the upper face of thepiece D, which is carefully surfaced, to adapt itself to the under faceof the cut-out bar E.-

E is a cut-ont bar, which is made of low-electric-resistance metal. Theupper end of this bar E is surfaced on its under face at that pointwhere it is to come in contact with the piece D, and the lower end issecured to the wire O between two spirals, fand f', formed on the saidwire O. Viiic object of forming the spirals f and f is to allow of theupper end of the bar E being vibrated or moved to and from the plate D,as is desired..

(No model.)

F is a spring', which is preferably formed of metal wire oflow electricresistance. The wire forming the spring F is bent upon itself at g, Fig.l, and from thence extends downward on both sides to ilI It', where itis formed into a spiral, which embraces a rod, z', said rod 'i heing inturn secured to the upper piece of wood, A, under the bar E. rlhe wirefrom thence extends downward until it rests on the spirals f andf of thewire O. The function of thisspriug F is to keep the bar E snugly incontact with the plate D when it is desired to cut olf the lights orother apparatus. The object in extending the ends ofthe spring F to thespirals ff is to make doubly sure ot` a contact being formed between thebar E and wire O, and to obviate the danger that would result should thehar E become detached in any manner from the said wire C. rihe currentwould then pass through the spring F, thence to the bar E.

G is a hinged or pivoted brace of non-conducting material, one endbeing' pivotallyr secured to the board A', and from thence the braceextends through a slot or pening, j, in the board A. rlhis brace is solocated that it will act when down, as shown in Fig. 2, to hold the barE out of contact with the plate D, and when thrown up, as shown in Fig.3, it will allow ot' the contact of the plato D and bar E, as shown.rllhis brace may be operated in anysuitable manner. One manneris shownmore clearly in Fig. 3, which consists ot' a rod, H, which passesvertically through the board A in such a manner that its upper end isadapted to engage with the brace G and lift it,

as shown. It will fall to the position shown in Fig. 2, where the bar Eis pulled outward and the rod H lowered.

The operation of my device is as follows: When theline is in its normalcondition-viz., when the cut-out is in the position shown in Fig. 2thecurrent passes from the main line through the wire B from a to c, thenceto the lamps or other apparatus to the end d ot' the wire O, through thewire O, and out at b to the main line again. To cutout the lamps orapparatus the oi-ace G is lifted, as shown in Fig. 3, which allows theunder face of the bar E to come in contact with the plate D, and thecurrent passes through the bar E instead ot' through the lamps or otherapparatus, on account ofthe lower electric resistance of the plate D andbar E. I pass a portion of the wires B and C between the boards, asshown by dotted or broken lines, Fig. 1. My object in doing this is toinsulate the said wires where they pass, and thus obviate any accidentalconnection.

l. In an electric cut-out, the combination, with a cut-out bar forshort-eircuiting the current, of a spring electrically connected withthe cut-out bar, and with the conductor to which the cutout is secured,substantially as setforth.

2, The combination, with the circuit having the loop, including thetranslating devices, of the plate D, arranged in the circuit at one endot' said loop7 the bar E, having one end arranged. to bear upon saidplate and the other end in contact with the conductor at the other endof said loop, a spring arranged to press said bar in contact with saidplate, and snitable means for raising said bar from said plate,substantially as described.

3. In an electric cutout, the combination, with an insulatingbase-board, ot' the electricloop terminals arranged upon said board, andthe main-circuit terminals leading from said loop-terminals, the cut-outbar E, of low resistance, arranged to connect said loop-terminals, andthe insulating-brace G and rod H, arranged to force one end of said haraway from one of said loop-terminals or permit it to come in contacttherewith, as desired, substantially as described.

et. The electric cut-out consisting of the insulating-base havingloop-wires embedded therein and connected with terminals on the outerface of said base, the main-line terminal connected with saidloop-terminals, the cutout har E, of low resistance, arranged to connectsaid loopterminals, and suitable means for disconnecting said bar fromone ot' said terminals, substantially as described.

In testimony whereot'I have signed my name to this speeitieation in thepresence of two subscribing witnesses.

ELROY M. AVERY.

Witnesses:

G. H. DORER, ALBERT F. LYNCH.

